3 years ago

Which of the following best describes the graphs below?

Mathematics

1 answer:

Evgen [1.6K]3 years ago

5 0

I think the answer is either b or c i am not sure

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Based on the survey results from 300 selected students in the Burbank School District (BSD), the 98% confidence interval used to

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Step-by-step explanation:

Please find the correct question in the attached file:

The formula for calculating the Confidence interval of proportion:

$\to CI=\hat{p} \pm Z_{\frac{\alpha}{2}} \sqrt{\frac{\hat{p}(1-\hat{p})}{n}}\\\\\to \hat{p}=\frac{\text{lower limit +upper limit}}{2}\\$

$=\frac{0.48+0.60}{2}\\\\=\frac{1.08}{2}\\\\=0.54$

The number of learners with access to working at home on a computer:

$= 0.54 \times 300 \\\\=162$

Lower limit =0.48

upper limit = 0.60

$\to margin \ error = \frac{\text{upper limit - lower limit}}{2}\\$

$=\frac{0.60-0.48}{2}\\\\=\frac{0.12}{2}\\\\= 0.06$

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Which of the following best describes the graphs below?​

Which of the following best describes the graphs below?